The team that I grew up with was constantly the underdog but managed to prevail...Everyone I knew was a Red Sox fan. Living up there in 1967 — the Impossible Dream season — that moment was incredibly compelling. I just naturally gravitated to the team. Nineteen seventy-five was arguably the greatest World Series of all time.

As his opponents jokingly take aim at his Boston allegiances, de Blasio has made sure to note he is "very happy to celebrate any New York sports team."